Backfire-to-endfire radiation characteristics of CRLH-TL using substrate integrated waveguide and metal-patches

Author

Mizumori, Yasunobu ; Okubo, Kensuke ; Kishihara, Mitsuyoshi ; Yamakita, Jiro ; Ohta, Isao

Author_Institution

Okayama Prefectural Univ., Soja, Japan

fYear

2009

fDate

7-10 Dec. 2009

Firstpage

1419

Lastpage

1422

Abstract

We have proposed a new type of the CRLH-TL consisting of two-layer planar substrates recently. It consists of a base waveguide of a substrate integrated waveguide (SIW), and series capacitances realized by slit apertures and metal patchs arranged on the upper conductor of the SIW. It is expected to become one of the basic CRLH-TL structures over 10 GHz or millimeter-wave. However radiation from the metal-patchs cannot neglect in this structure. Then we proposed a leaky-wave antenna using the SIW metal-patch type CRLH-TL. In this paper, beam scan characteristics as a function of driving frequency are confirmed theoretically and experimentally. A SIW metal-patch type CRLH-TL with transition frequency of 16 GHz is designed for a leaky-wave antenna and fabricated. Measured results agree well with theoretical and numerical results.

Keywords

antenna radiation patterns; millimetre wave antennas; substrate integrated waveguides; transmission line theory; CRLH-TL; SIW metal-patches; backfire-to-endfire radiation characteristics; composite right/left handed transmission lines; leaky-wave antenna; millimeter-wave transmission line; series capacitances; slit apertures; two-layer planar substrate integrated waveguide; Antenna measurements; Apertures; Capacitance; Conductors; Frequency; Leaky wave antennas; CRLH-TL; SIW; beam scan; leaky-wave antenna; metal-patch; microwave; millimeter wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2009. APMC 2009. Asia Pacific

Conference_Location

Singapore

Print_ISBN

978-1-4244-2801-4

Electronic_ISBN

978-1-4244-2802-1

Type

conf

DOI

10.1109/APMC.2009.5384116

Filename

5384116